Magnetic type flow meter


Magnetic type flow meter


Flowmeter is an instrumentation device mostly used to measure the flow of fluids in pipes or open channels. Flow meter is an important part of measurement science and technology. Flow meters are widely used in various fields such as national defense construction, industrial and agricultural production, scientific research, foreign trade, and people’s lives. If there is no flow measurement, then the industry will not be able to produce normally, and it will not be able to guarantee the trade between the industries. In the chemical industry, inaccurate flow measurement will cause chemical components to fail to meet the standard requirements, and product quality cannot be guaranteed.

In more serious cases, it may lead to production safety accidents. In industrial production, it is very important to measure and adjust the flow of liquid, gas, steam and other media. The accuracy of flow measurement is of great significance to industrial production. With the continuous development of science and technology, the accuracy of flow measurement in industrial applications has become an important factor to ensure safe operation

Flow meter types are divided according to the principle: volumetric flowmeter, differential pressure flowmeter, rotameter flowmeter, turbine flowmeter, Magnetic type flow meter, vortex flowmeter, mass flowmeter, etc.

Magnetic type flow meter is a kind of instrument device that can measure the volume flow of conductive liquid, which is made by the principle of Faraday’s law of electromagnetic induction. In the early 1950s, the electromagnetic flowmeter realized industrial application. In the late 1970s, the low-frequency rectangular wave excitation replaced the power frequency AC excitation method used in the early stage.

In recent years, magnetic flowmeters have been widely used as waste water flow meter or drinking water flow meter in water supply and drainage projects, slurry or pulp flow meter in the paper industry, Strong erosive liquid such as acid flow meter in chemical industry and blast furnace cooling water control and monitoring in iron and steel industry, pharmaceutical industry, food industry, biological engineering and other places with hygienic flow measurement requirements, for example acid flow meter, sanitary magnetic type flow meters, chemical flow meters. , etc.

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